EP 0968244 B1 20040218 - FORMING SUPERABSORBENT POLYMER
Title (en)
FORMING SUPERABSORBENT POLYMER
Title (de)
BILDUNG VON SUPERABSORBIERENDEM POLYMER
Title (fr)
PROCEDE DE PREPARATION D'UN POLYMERE SUPERABSORBANT
Publication
Application
Priority
- US 9805221 W 19980317
- US 81943197 A 19970317
Abstract (en)
[origin: US5859179A] A method of preparing superabsorbent polymer as crosslinked polyaspartate salt by reacting polysuccinimide dissolved in organic solvent with crosslinker and reacting the polysuccinimide in situ with neat or a solution of alkali metal hydroxide to form the crosslinked salt.
IPC 1-7
IPC 8 full level
C08G 73/10 (2006.01)
CPC (source: EP US)
C08G 73/1092 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9841564 A1 19980924; AT E259845 T1 20040315; AU 6561998 A 19981012; DE 69821745 D1 20040325; DE 69821745 T2 20041202; EP 0968244 A1 20000105; EP 0968244 B1 20040218; US 5859179 A 19990112
DOCDB simple family (application)
US 9805221 W 19980317; AT 98911734 T 19980317; AU 6561998 A 19980317; DE 69821745 T 19980317; EP 98911734 A 19980317; US 81943197 A 19970317